20230731-angular-Erwieterung-authantificationAnd

src/app/admin/admin-routing.module.ts

@@ -0,0 +1,14 @@
+import { NgModule } from '@angular/core';
+import { RouterModule, Routes } from '@angular/router';
+import { BookCreateComponent } from './book-create/book-create.component';
+
+const routes: Routes = [
+  { path: 'admin', redirectTo: 'admin/create' },
+  { path: 'admin/create', component: BookCreateComponent },
+];
+
+@NgModule({
+  imports: [RouterModule.forChild(routes)],
+  exports: [RouterModule],
+})
+export class AdminRoutingModule {}

src/app/admin/admin.module.ts

@@ -0,0 +1,16 @@
+import { NgModule } from '@angular/core';
+import { CommonModule } from '@angular/common';
+
+import { AdminRoutingModule } from './admin-routing.module';
+import { FormsModule } from '@angular/forms';
+import { BookFormComponent } from './book-form/book-form.component';
+import { BookCreateComponent } from './book-create/book-create.component';
+
+@NgModule({
+  declarations: [
+    BookFormComponent,
+    BookCreateComponent
+  ],
+  imports: [CommonModule, AdminRoutingModule, FormsModule],
+})
+export class AdminModule {}

src/app/admin/book-create/book-create.component.html

@@ -0,0 +1,3 @@
+<h1>Create Book</h1>
+
+<bm-book-form (submitBook)="create($event)"></bm-book-form>

src/app/admin/book-create/book-create.component.spec.ts

@@ -0,0 +1,21 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { BookCreateComponent } from './book-create.component';
+
+describe('BookCreateComponent', () => {
+  let component: BookCreateComponent;
+  let fixture: ComponentFixture<BookCreateComponent>;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      declarations: [BookCreateComponent]
+    });
+    fixture = TestBed.createComponent(BookCreateComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/admin/book-create/book-create.component.ts

@@ -0,0 +1,22 @@
+import { Component } from '@angular/core';
+import { Router } from '@angular/router';
+import { BookStoreService } from 'src/app/shared/book-store.service';
+import { Book } from 'src/shared/book';
+
+@Component({
+  selector: 'bm-book-create',
+  templateUrl: './book-create.component.html',
+  styleUrls: ['./book-create.component.css'],
+})
+export class BookCreateComponent {
+  constructor(
+    private service: BookStoreService,
+    private router: Router,
+  ) {}
+
+  create(book: Book) {
+    this.service.create(book).subscribe((createdBook) => {
+      this.router.navigate(['/books', createdBook.isbn]);
+    });
+  }
+}

src/app/admin/book-form/book-form.component.html

@@ -0,0 +1,19 @@
+<form (ngSubmit)="submitForm()" #form="ngForm">
+  <label for="title">Title</label>
+  <input name="title" id="title" [(ngModel)]="book.title" required />
+
+  <label for="isbn">ISBN</label>
+  <input
+    name="isbn"
+    id="isbn"
+    [(ngModel)]="book.isbn"
+    required
+    minlength="10"
+    maxlength="13"
+  />
+
+  <label for="author">Author</label>
+  <input name="author" id="author" [(ngModel)]="book.authors[0]" required />
+
+  <button type="submit" [disabled]="form.invalid">Save</button>
+</form>

src/app/admin/book-form/book-form.component.spec.ts

@@ -0,0 +1,21 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { BookFormComponent } from './book-form.component';
+
+describe('BookFormComponent', () => {
+  let component: BookFormComponent;
+  let fixture: ComponentFixture<BookFormComponent>;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      declarations: [BookFormComponent]
+    });
+    fixture = TestBed.createComponent(BookFormComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/admin/book-form/book-form.component.ts

@@ -0,0 +1,21 @@
+import { Component, Output, EventEmitter } from '@angular/core';
+import { Book } from 'src/shared/book';
+
+@Component({
+  selector: 'bm-book-form',
+  templateUrl: './book-form.component.html',
+  styleUrls: ['./book-form.component.css'],
+})
+export class BookFormComponent {
+  @Output() submitBook = new EventEmitter<Book>();
+
+  submitForm() {
+    this.submitBook.emit(this.book);
+  }
+
+  book: Book = {
+    isbn: '',
+    title: '',
+    authors: [''],
+  };
+}

src/app/app.component.html

@@ -1,10 +1,21 @@
 <nav>
-  <a routerLink="/home" routerLinkActive="active" ariaCurrentWhenActive="page"
-    >Home</a
-  >
-  <a routerLink="/books" routerLinkActive="active" ariaCurrentWhenActive="page"
-    >Books</a
-  >
+  <a routerLink="/home" routerLinkActive="active" ariaCurrentWhenActive="page">
+    Home
+  </a>
+  <a routerLink="/books" routerLinkActive="active" ariaCurrentWhenActive="page">
+    Books
+  </a>
+  <a routerLink="/admin" routerLinkActive="active" ariaCurrentWhenActive="page">
+    Administrator
+  </a>
+  <div class="actions">
+    <button class="green" (click)="auth.login()" *ngIf="!auth.isAuthenticated">
+      Login
+    </button>
+    <button class="red" (click)="auth.logout()" *ngIf="auth.isAuthenticated">
+      Logout
+    </button>
+  </div>
 </nav>
 <main>
   <router-outlet></router-outlet>

src/app/app.component.ts

@@ -1,19 +1,12 @@
 import { Component } from '@angular/core';
-import { Book } from 'src/shared/book';
-
+import { AuthService } from './shared/auth.service';
 @Component({
   selector: 'bm-root',
   templateUrl: './app.component.html',
   styleUrls: ['./app.component.css'],
 })
 export class AppComponent {
-  title = 'book-monkey';
-  book: Book | null = null;
+  constructor(public auth: AuthService) {}
 
-  showList() {
-    this.book = null;
-  }
-  showDetails(book: Book) {
-    this.book = book;
-  }
+  title = 'book-monkey';
 }

src/app/app.module.ts

@@ -5,12 +5,17 @@ import { AppRoutingModule } from './app-routing.module';
 import { AppComponent } from './app.component';
 import { BooksModule } from './books/books.module';
 import { HomeComponent } from './home/home.component';
-import { HttpClientModule } from '@angular/common/http';
+import { HTTP_INTERCEPTORS, HttpClientModule } from '@angular/common/http';
+import { SearchComponent } from './search/search.component';
+import { AuthInterceptor } from './shared/auth.interceptor';
+import { AdminModule } from './admin/admin.module';
 
 @NgModule({
-  declarations: [AppComponent, HomeComponent],
-  imports: [BrowserModule, AppRoutingModule, BooksModule, HttpClientModule],
-  providers: [],
+  declarations: [AppComponent, HomeComponent, SearchComponent],
+  imports: [BrowserModule, AppRoutingModule, BooksModule, HttpClientModule, AdminModule],
+  providers: [
+    { provide: HTTP_INTERCEPTORS, useClass: AuthInterceptor, multi: true },
+  ],
   bootstrap: [AppComponent],
 })
 export class AppModule {}

src/app/books/book-list/book-list.component.ts

@@ -15,8 +15,4 @@ export class BookListComponent {
   constructor(private service: BookStoreService) {
     this.books$ = this.service.getAll();
   }
-
-  doSelect(book: Book) {
-    this.selectBook.emit(book);
-  }
 }

src/app/home/home.component.html

@@ -1,3 +1,6 @@
 <h1>Home</h1>
 
 <a routerLink="/books" class="button red">Show book list</a>
+
+<h2>Search</h2>
+<bm-search></bm-search>

src/app/search/search.component.html

@@ -0,0 +1,18 @@
+<input
+  type="search"
+  autocomplete="off"
+  aria-label="Search"
+  [class.loading]="isLoading"
+  #searchInput
+  (input)="input$.next(searchInput.value)"
+/>
+
+<ul class="search-results" *ngIF="results$ | async as results">
+  <li *ngFor="let book of results">
+    <a [routerLink]="['/books', book.isbn]">
+      {{ book.title }}
+      <p role="doc-subtitle">{{ book.subtitle }}></p>
+    </a>
+  </li>
+  <li *ngIf="!results.length">No results</li>
+</ul>

src/app/search/search.component.spec.ts

@@ -0,0 +1,21 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { SearchComponent } from './search.component';
+
+describe('SearchComponent', () => {
+  let component: SearchComponent;
+  let fixture: ComponentFixture<SearchComponent>;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      declarations: [SearchComponent]
+    });
+    fixture = TestBed.createComponent(SearchComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/search/search.component.ts

@@ -0,0 +1,34 @@
+import { Component } from '@angular/core';
+import {
+  Subject,
+  debounceTime,
+  distinctUntilChanged,
+  filter,
+  switchMap,
+  tap,
+  Observable,
+} from 'rxjs';
+import { BookStoreService } from '../shared/book-store.service';
+import { Book } from 'src/shared/book';
+
+@Component({
+  selector: 'bm-search',
+  templateUrl: './search.component.html',
+  styleUrls: ['./search.component.css'],
+})
+export class SearchComponent {
+  input$ = new Subject<string>();
+  isLoading = false;
+  results$: Observable<Book[]>;
+
+  constructor(private service: BookStoreService) {
+    this.results$ = this.input$.pipe(
+      filter((term) => term.length >= 3),
+      debounceTime(500),
+      distinctUntilChanged(),
+      tap(() => (this.isLoading = true)),
+      switchMap((term) => this.service.getAllSearch(term)),
+      tap(() => (this.isLoading = false)),
+    );
+  }
+}

src/app/shared/auth.interceptor.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { AuthInterceptor } from './auth.interceptor';
+
+describe('AuthInterceptor', () => {
+  beforeEach(() => TestBed.configureTestingModule({
+    providers: [
+      AuthInterceptor
+      ]
+  }));
+
+  it('should be created', () => {
+    const interceptor: AuthInterceptor = TestBed.inject(AuthInterceptor);
+    expect(interceptor).toBeTruthy();
+  });
+});

src/app/shared/auth.interceptor.ts

@@ -0,0 +1,30 @@
+import { Injectable } from '@angular/core';
+import {
+  HttpRequest,
+  HttpHandler,
+  HttpEvent,
+  HttpInterceptor,
+} from '@angular/common/http';
+import { Observable } from 'rxjs';
+import { AuthService } from './auth.service';
+
+@Injectable()
+export class AuthInterceptor implements HttpInterceptor {
+  constructor(private authService: AuthService) {}
+  intercept(
+    request: HttpRequest<unknown>,
+    next: HttpHandler,
+  ): Observable<HttpEvent<unknown>> {
+    const token = '1234567890';
+    if (this.authService.isAuthenticated) {
+      //token in hearder einfügen
+      const reqWithToken = request.clone({
+        setHeaders: { Authorization: `Bearer${token}` },
+      });
+      return next.handle(reqWithToken);
+    } else {
+      //Request unverändert weitergeben
+      return next.handle(request);
+    }
+  }
+}

src/app/shared/auth.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { AuthService } from './auth.service';
+
+describe('AuthService', () => {
+  let service: AuthService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(AuthService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

src/app/shared/auth.service.ts

@@ -0,0 +1,24 @@
+import { Injectable } from '@angular/core';
+import { BehaviorSubject } from 'rxjs';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class AuthService {
+  private _isAuthenticated$ = new BehaviorSubject(true);
+  readonly isAuthenticated$ = this._isAuthenticated$.asObservable();
+
+  constructor() {}
+
+  get isAuthenticated() {
+    return this._isAuthenticated$.value;
+  }
+
+  login() {
+    this._isAuthenticated$.next(true);
+  }
+
+  logout() {
+    this._isAuthenticated$.next(false);
+  }
+}

src/app/shared/book-store.service.ts

@@ -1,6 +1,6 @@
 import { HttpClient } from '@angular/common/http';
 import { Injectable } from '@angular/core';
-import { Observable } from 'rxjs';
+import { Observable, catchError, of } from 'rxjs';
 import { Book } from 'src/shared/book';
 
 @Injectable({
@@ -12,7 +12,12 @@ export class BookStoreService {
   constructor(private http: HttpClient) {}
 
   getAll(): Observable<Book[]> {
-    return this.http.get<Book[]>(`${this.apiUrl}/books`);
+    return this.http.get<Book[]>(`${this.apiUrl}/books`).pipe(
+      catchError((err) => {
+        console.error(err);
+        return of([]);
+      }),
+    );
   }
 
   getSingle(isbn: string): Observable<Book> {
@@ -22,4 +27,17 @@ export class BookStoreService {
   remove(isbn: string): Observable<unknown> {
     return this.http.delete(`${this.apiUrl}/books/${isbn}`);
   }
+
+  getAllSearch(term: string): Observable<Book[]> {
+    return this.http.get<Book[]>(`${this.apiUrl}/books/search/${term}`).pipe(
+      catchError((err) => {
+        console.error(err);
+        return of([]);
+      }),
+    );
+  }
+
+  create(book: Book): Observable<Book> {
+    return this.http.post<Book>(`${this.apiUrl}/books`, book);
+  }
 }